I found an interesting consulting firm that publishes results of surveys on issues bianually, ie the last one was in 2016
They hold many polls across the world and basically create an “ignorance” index, ie how common does the average individual get stats wrong, especially in their own country
Italy won 1st place in 2014 lol
On the topic of muslims, its quite funny, my favourite being turkey especially.
Ipsos uses their data from a 3rd party, Pew research centre, which is generally recognised to be reliable.